I'm assuming these last three posts are in reply to me. If not, my mistake -
Note that I would never argue, even in the case of LB or RE procs, for Parry to be a DPS gain over Crit/Det/SS, only that it is a DPS gain over nothing at all (not having damaging abilities that proc off of parry, like WAR/PLD). The reason for this is simply that I do not know and no math has been done on the subject, I still favor Crit and Det (not so much SS) over parry, but if I get a Parry piece, I wear it, and I still will spend tomestones on pieces even if they do have Parry, just so that I have options in a given fight.
I would not have myself be pidgeonholed or labeled a parry advocate. I'm an advocate of adaptability and giving yourself options. Options = Win. Black and White "DPS or Fail" philosophies are a LAZY attitude to bring to a group in terms of planning and strategy.
Parrying a TB that would have otherwise killed you means the pull lasts longer > you see/practice more mechanics > you progress faster. Can it be relied on? Well no shit it can't. But I'd rather have a chance to live and see more of the fight in some circumstances.
Stacking so much DPS during progression (progression means you're learning the fight, you haven't seen the entire thing yet, people are still dying repeatedly to dumb things, etc.) in the absence of strict DPS checks (DPS checks in Midas are crazy lenient right now) is like a dude of average endowment buying a bunch of magnums.
If you failed a DPS check, DPS matters. If you hit enrage, DPS matters. If you are reasonably within reach of pushing a phase early, DPS matters. If you wiped, and none of the aforementioned are true, your DPS means ***nothing*** because you didn't kill the boss. You did a buttload of damage that is lost to the void and flushed down the toilet of the game's memory cache because it resulted in nothing: You still wiped.
Edit: Ah, my bad then. Although I feel the general message of my post is worth contributing to this thread.